| NPH | neutral protamine Hagedorn (insulin) [not used anymore]; normal pressure hydrocephalus; nucleus pulp... |
|---|---|
| N/R | not remarkable |
| NRC | National Research Council; National Response Center; normal retinal correspondence; not routine care... |
| NRFD | not ready for data |
| ns | nanosecond; nonspecific; no sequelae; no specimen; not significant; nylon suture |